N.H. Rev. Stat. § 52:23
Upon the written application of 10 percent of the registered voters in any village water district, presented to the commissioners or one of them at least 15 days before the day prescribed for an annual meeting of the district, the commissioners shall insert in their warrant for such meeting an article relative to the use of fluoride in the water system for said district, and the district clerk shall prepare a ballot for said meeting with the following question: "Shall fluoride be used in the district water system?" Beside the question shall be printed the word "yes" and the word "no" with the proper boxes for the voter to indicate his or her choice. If a majority of those voting in a water system that serves only one municipality does not approve the use of fluoride in the district water system, no fluoride shall be introduced into the district water system; or if fluoride has, prior to said vote, been so introduced, such use shall be discontinued until such time as the majority of those voting in the town approve of the use of fluoride. After such popular referendum, the commissioners shall not insert an article relative to the use of fluoride in the district water system in the warrant nor shall the district clerk prepare such a ballot for a minimum period of 3 years from the date of the last popular referendum of the district and only upon written application at that time of not less than 10 percent of the registered voters of said district. The procedure for a referendum on the use of fluoride in a village district that is part of a water system serving more than one municipality shall be the procedure in RSA 485:14-a.
RSA 52:23
1959, 273:3. 1979, 335:3. 2004, 225 : 5 . 2008, 230 : 8 , eff. Aug. 19, 2008.